DE19506136A1 - Length locking device for railway container wagon - Google Patents

Abstract

The length locking devices (2) comprise wedged locking studs (3) arranged in pairs on the telescopic length adjustment device (1) and operable by the work cylinder (4) and rods (5). Safety elements are formed by compression springs (6) and elbow lever (7) with an over-dead-centre position (8). To ensure correctly timed release and subsequent engagement of the opened wedged locking stud before and after the length locking device with a safety distance "a", approach switches (9) are arranged in the telescopic length adjustment device to react to the detent openings for the studs. The work cylinders have end position approach switches (10) which, after reaching the complete locking state, switch a route lock free for the wagon unit.

Description

The invention relates to a length locking device for railway loading container wagon with telescopic loading length adjustment device preferably telescopic medium long beams.

There are already solutions for length locking devices on vehicles known with telescopic loading length adjustment devices.

For example, a railroad semitrailer was described in US Pat. No. 005,216,956 train with a detachable first bogie and a second with a Loading platform with variable-length medium-length beam shown Two middle long beam parts are put together telescopically. It is a manually operated plug pin connection is provided, which has a hole row in both parts of the mid-length member by inserting one vertical plug pin is accomplished by hand.

This solution has the disadvantage that it is time-consuming in handling and not is suitable for a lock from the movement and also not for automation of the locking process.

From the patent application "Device for the transport of loaded and empty Truck trailers (semi-trailers) on the railroad track of the train, without a train machine! "(Applicant Bruno F. Forster Austin USA) is also one telescopic loading length adjustment device, in which between two bogies a three-part adjustable in length in the loading process Medium-length beam or coupling rod is used.

The length locking device is shown in FIGS. 1a and 8. Here coupling shells are proposed for the connection of the telescopic parts, which engage in engagement rings fastened on the coupling rod.

The disadvantage of this solution is that it is not suitable for one rapid positive locking process out of the movement. The setup is difficult and expensive and is not for one Automation process suitable.  

In DE 38 00 253 a length locking device is part 11 to 17 shown, in which the telescopic device via the adjustment lengths has a toothed rail into which a tooth actuated by wedge pieces rail clamp segment engages and both parts locked.

This version has the disadvantage that it is preferred for very short Length gradations is suitable. Because an instant secure snap-in of the Teeth are not completely present in every position, but an impact the tooth crowns can also occur on top of each other, is the solution only for low forces and an individually hand-operated locking process suitable.

For automated actuation and locking from the movement in the case of a means that is compressed or pulled apart by the locomotive long girders this principle is prone to damage and high expenditure lets expect interference.

The invention has for its object a length lock for Railway container wagon with telescopic length adjustment device without creating the disadvantages listed above.

According to the invention the task is in accordance with the characterizing part of Claim 1 solved.

The advantages of the proposed solution of the length locks according to the invention lungseinrichtung are that for a quick and forceful, out of the movement caused by the squeezing or apart pulling the telescopic car parts through a locomotive with great effort large longitudinal forces due to the need to move entire adjacent ones Carriage groups are created, initiated safe locking process suitable is.

By timely initiating the release of the open lock tap and place the same on the wall of the medium-length web and sliding on it due to the arrangement of the proximity switches in a safety distance "a" before and after the locking pin is a secure locking of the pegs into the intended snap-in opening  Due to the symmetrical arrangement of the locking pins in pairs Compression springs and the over-center position of the toggle lever in interaction with the working cylinder, the actuation system becomes safety-related completed.

In an automated control and monitoring process via a train-bus system is also provided for security reasons over the proposed Use of end position proximity switches on the working cylinder after complete locking of the parts releasing an "immobilizer" to enable d. i.e. to close the main brake air line and to establish and display the readiness to drive.

An embodiment of the invention is shown in a drawing and is described in more detail below.

It shows:

Fig. 1 is a horizontal section through a loading lengths with a length adjustment lock device.

On the outer tube of the telescopic loading length adjustment device ( 1 ), a locking device ( 2 ) is arranged laterally and in pairs opposite each other.

The locking pins ( 3 ) connect the telescopic parts ( 1 ) in a force-fitting manner by engaging in the snap-in openings ( 11 ) arranged at defined intervals.

If the load length are changed, the working cylinder (4), controlled by a memory programming system via a train bus, filled with compressed air, thus moving the toggle lever (7) and the linkage (5) of the locking pin (3) is in the Release position pulled. Due to the translation due to the toggle action, particularly large release and locking forces are generated and the compression spring ( 6 ) is tensioned. When the proximity switch ( 9 ) is passed over the defined snap-in openings ( 11 ), this switch ( 9 ) triggers the actuation of the working cylinder ( 4 ) and the locking pins ( 3 ) rest on the wall of the medium-long beam and press in anticipation of Snap opening ( 11 ) by the force of the working cylinder ( 4 ) and that of the compression spring ( 6 ) sliding on the wall of the inner tube.

Due to the wedge shape and the size of the contact pressure is also relative fast movements are securely locked.

In the locked position, the compression spring ( 6 ) and the over-center position ( 8 ) ensure that the parts of the loading length adjustment device are securely locked.

The working cylinders each have two end position proximity switches ( 10 ) that signal the respective end position of the working piston.

Reference list

1 loading length adjustment device
2 length locking device
3 locking pins
4 working cylinders
5 poles
6 compression spring
7 toggle levers
8 Dead center position
9 proximity switches
10 end position proximity switches
11 snap opening
"a" safety distance for triggering the opened locking pins

Claims (1)

Length locking device for railway container wagons with telescopic load length adjustment device, preferably telescopic middle longitudinal beams, characterized in that the length locking devices ( 2 ) consist of pairs of wedge-shaped locking pins ( 3 ) arranged on the telescopic length adjustment device ( 1 ), which can be actuated via working cylinders ( 4 ) and linkages ( 5 ) are designed and have as security elements the compression springs ( 6 ) and the toggle levers ( 7 ) of the linkage ( 5 ) with dead center position ( 8 ) and that to initiate the timely release and subsequent engagement of the open wedge-shaped locking pin ( 3 ) before and after the length locking device ( 2 ) with a safety distance "a" proximity switch ( 9 ) in the telescopic length adjustment device ( 1 ), which respond to the latching openings ( 11 ) for the locking pin ( 3 ) and that the working cylinders ( 4 ) have end position proximity switches ( 10 ) which unlock an immobilizer for the carrier unit after the complete locking has been reached.